#region Copyright (c) 2004 Atif Aziz. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#endregion

namespace LinqPadless
{
    using System;

    sealed class DelegatingDisposable : IDisposable
    {
        Action _disposer;

        public DelegatingDisposable(Action disposer)
        {
            if (disposer == null) throw new ArgumentNullException("disposer");
            _disposer = disposer;
        }

        public void Dispose()
        {
            var disposer = _disposer;
            if (disposer == null)
                return;
            _disposer = null;
            disposer();
        }
    }
}